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Wyoming Geography

Wyoming, like most of the western U.S. States, displays a broad-range of striking landforms that in many ways boggle the mind. In Wyoming, those would include the Devil's Tower, Fossil Butte, Grand Tetons and Yellowstone National Park.

In general terms the Great Plains of North America slope east from the Rocky Mountains, extending south from Canada, covering the eastern parts of Wyoming. Much of it is short-grass prairie land, with the Black Hills being the major exception.

As for the Rockies, over a dozen mountain ranges cover the west, including the snow-capped Absaroka, Grand Tetons and Wind River. The highest point (Gannett Peak) in the Wind River Mountains reaches 13,804 ft.. The Big Horn Mountains dominate the north-central area, while the rugged Laramie Mountains cover the southern and southeastern landscapes.

The Continental Divide (an imaginary line) indicates the absolute highest points of land, where on either side of same, rivers will flow downhill, east or west. That divide runs from northwestern Canada, south along the crests of the western Rocky Mountains of Wyoming, then south into Mexico, where it follows the peaks of the Sierra Madre Occidental. For example, the Snake river flows west while the Sweetwater River flows east.

Between the eastern and western mountains, several relatively flat basins are the major land features. These (land between mountain) almost treeless (plateaus) are arid and generally unproductive land. The biggest one, the Great Divide Basin, is located to the south of the Sweetwater River.

Wyoming has numerous man-made reservoirs, with the largest ones located on the North Platte River, to the south of Casper, and to the northeast of Riverton on the Bighorn River.

Significant rivers include the Belle Fourche, Bighorn, Green, North Platte, Powder, Snake, Sweetwater and Yellowstone.

For a detailed look at the topography of Wyoming, view this map.

Wyoming Photographs

Yellowstone National Park, Wyoming

by Walter Bibikow
Buy This at Allposters.com

Wyoming Cities, Counties & Area Codes

City County Area Code
Laramie Albany 307
Lovell Big Horn 307
Gillette Campbell 307
Rawlins Carbon 307
Douglas Converse 307
Moorcroft Crook 307
Riverton Fremont 307
Torrington Goshen 307
Thermopolis Hot Springs 307
Buffalo Johnson 307
Cheyenne Laramie 307
Afton Lincoln 307
Casper Natrona 307
Lusk Niobrara 307
Cody Park 307
Wheatland Platte 307
Sheridan Sheridan 307
Pinedale Sublette 307
Rock Springs Sweetwater 307
Jackson Teton 307
Evanston Uinta 307
Worland Washakie 307
Newcastle Weston 307

About the Author

John Moen is a cartographer who along with his wife are the orignal founders of worldatlas.com. He and his wife, Chris Woolwine-Moen, produced thousands of award-winning maps that are used all over the world and content that aids students, teachers, travelers and parents with their geography and map questions. Today, it's one of the most popular educational sites on the web.

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This page was last updated on July 10, 2020.